glsl: Support uint index in do_vec_index_to_cond_assign

The ES31-CTS.compute_shader.pipeline-compute-chain test case generates
an unsigned index by using gl_LocalInvocationID.x and
gl_LocalInvocationID.y as array indices.

Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/glsl/lower_vec_index_to_cond_assign.cpp b/src/glsl/lower_vec_index_to_cond_assign.cpp
index 0c3394a504b..b6238825f8a 100644
--- a/src/glsl/lower_vec_index_to_cond_assign.cpp
+++ b/src/glsl/lower_vec_index_to_cond_assign.cpp
@@ -88,7 +88,9 @@ ir_vec_index_to_cond_assign_visitor::convert_vec_index_to_cond_assign(void *mem_
    exec_list list;
 
    /* Store the index to a temporary to avoid reusing its tree. */
-   index = new(base_ir) ir_variable(glsl_type::int_type,
+   assert(orig_index->type == glsl_type::int_type ||
+          orig_index->type == glsl_type::uint_type);
+   index = new(base_ir) ir_variable(orig_index->type,
 				    "vec_index_tmp_i",
 				    ir_var_temporary);
    list.push_tail(index);